Injection molding machine device

ABSTRACT

An injection molding machine device includes at least two guide rods. One end of each guide rod is fixed to a rack, and the other end of each guide rod is fixed to a fixed base body. A movable base body is provided opposite to the fixed base body. The movable base body slides along the guide rods relative to the fixed base body. At least one correction mechanism is located between the movable base body and the guide rail to adjust a movement of the movable base body in a vertical direction. A predetermined clearance value and/or a predetermined contact force value exist between the components. At least one sensor is electrically connected to a controller. The controller correspondingly controls the correction mechanism by determining whether corresponding detecting values of the sensor match with the predetermined clearance values and/or the predetermined contact force values.

CROSS-REFERENCE TO RELATED PATENT APPLICATION

This application is a divisional application of U.S. application Ser.No. 16/838,127 (hereinafter the “'127 Application”), filed Apr. 2, 2020,now pending, which itself is a continuation-in-part of U.S. patentapplication Ser. No. 15/692,364, filed Aug. 31, 2017, which claimspriority to and benefit of, under 35 U.S.C. § 119(a), Patent ApplicationNo. 201720114078.5 filed in P.R. China on Jan. 25, 2017. The '127Application also claims priority to and benefit of, under 35 U.S.C. §119(a), Patent Application No. 202010216537.7 filed in P.R. China onMar. 17, 2020. The disclosures of the above applications areincorporated herein in their entireties by reference.

Some references, which may include patents, patent applications andvarious publications, are cited and discussed in the description of thisdisclosure. The citation and/or discussion of such references isprovided merely to clarify the description of the present disclosure andis not an admission that any such reference is “prior art” to thedisclosure described herein. All references cited and discussed in thisspecification are incorporated herein by reference in their entiretiesand to the same extent as if each reference were individuallyincorporated by reference.

FIELD

The present invention relates generally to an injection molding machinedevice, and more particularly to an injection molding machine devicethat can automatically adjust the height of a movable mold base.

BACKGROUND

The background description provided herein is for the purpose ofgenerally presenting the context of the disclosure. Work of thepresently named inventors, to the extent it is described in thisbackground section, as well as aspects of the description that may nototherwise qualify as prior art at the time of filing, are neitherexpressly nor impliedly admitted as prior art against the presentdisclosure.

The movable mold plate of a plastic injection molding machine has longmovement stroke, and the weight of a mold base itself and the weight ofa mold are very high, so a support mechanism will be arranged below amovable mold base to transfer the gravity of the movable mold base andthe mold plate to an injection molding machine rack, thereby reducingthe burden of mold gravity on guide rods.

A simple quick mold changing device was disclosed in Chinese Patent No.CN200820024361, in which a support mechanism for a mold is that asupport positioning block is mounted below a device fixing plate and amovable mold base, and the upper positioning surface of the supportpositioning block is matched with the lower positioning surface of themold to play a role of supporting the mold. The support mode belongs toa fixed support mode, and has the disadvantages that due to themanufacturing tolerance of the machine itself or the wear of a Gelincolumn or the support positioning block after long-time use of themachine, the movable mold base will sink or tilt relative to the fixingplate, or because the molds are not in the same horizontal plane due tothe machining tolerance of the positioning surfaces of the moldsthemselves, the upper positioning surface of a certain supportpositioning block or the upper positioning surfaces of certain supportpositioning blocks cannot be fully matched with the lower positioningsurface of a mold positioning mechanism to generate a gap. During moldopening, the gap side of the mold sinks due to the action of gravity, sothat a connecting mechanism at the side is mismatched with a connectingmechanism at the other side. During mold closing, the wear of theconnecting mechanism between the molds will be caused, and the servicelife of the mold is shortened.

In order to solve the foregoing problem, an adjustable supportpositioning mechanism is disclosed in the related art, such as a moldplate support guide device disclosed in Chinese Patent No. 201510439127,which includes a rack guide rail arranged in the horizontal direction,where both the top surface and the side surface are provided withsupport adjusting modules urged through grooves. The support adjustingmodule includes a first wedge block in slide matching with the rackrail, and a second wedge block fixedly connected with a mold platesupport leg, an intermediate block is urged between the first wedgeblock and the second wedge block, and the support adjusting module isprovided with an adjusting component for adjusting the distance betweenthe bottom surface of the first wedge block and the top surface of thesecond wedge block. The movable mold plate can be adjusted by thesupport adjusting module in three directions so that the mold plate canbe stably and precisely placed on the rack guide rail, thus reducing therequirements of machining accuracy of the rack and the mold plate.

However, in the above-mentioned adjusting component, a connecting shaftis in threaded connection with the intermediate block, manual adjustmentis needed and a device for measuring or displaying the height of themovable mold base in real time is not provided. After the support deviceis worn due to the long-term reciprocating movement on the guide rail,the height of the movable mold base needs to be manually measured andadjusted, thereby increasing the labor intensity. In addition, inconfirming the final adjusted height of the movable mold base, theadjusted height is generally obtained by estimation according toexperience, or by multiple repeated trials, thereby increasing the laborintensity. Further, it is impossible to know the sinking height ortilting degree of the movable mold base real-time and accurately,resulting in the adjusted height of the movable mold base and an actualsinking height thereof to be significantly different, thereby causingsignificant wear between the connecting mechanisms.

Therefore, a heretofore unaddressed need to design a novel injectionmolding machine device exists in the art to address the aforementioneddeficiencies and inadequacies.

SUMMARY

In view of the deficiency of the background, the present invention isdirected to an injection molding machine device, which is provided withsensors to detect clearances and/or contact forces between connectingcomponents of the injection molding machine device due to the tilting ofa movable base body, thereby correspondingly controlling a correctionmechanism to adjust the movement of the movable base body in a verticaldirection, such that the detection values of the sensors reachpredetermined clearance values and/or predetermined contact forcevalues, and the wear between the movable base body and the guide rodsbecomes smaller and more controllable.

To achieve the foregoing objective, the present invention adopts thefollowing technical solutions.

An injection molding machine device includes: a rack; at least one guiderail fixed to the rack; at least two guide rods, wherein one of two endsof each of the at least two guide rods is fixed to the rack; a fixedbase body fixed to one end of the rack, wherein the other of the twoends of each of the at least two guide rods is fixed to the fixed basebody; a movable base body provided opposite to the fixed base body,wherein the movable base body is provided with at least two receivingholes to correspondingly receive the at least two guide rods, and themovable base body slides along the at least two guide rods relative tothe fixed base body; at least one correction mechanism located betweenthe movable base body and the guide rail to adjust a movement of themovable base body in a vertical direction, wherein a first predeterminedvalue exists between one of the at least two guide rods and an innerwall of a corresponding one of the at least two receiving holes, asecond predetermined value exists between the movable base body and thecorrection mechanism, and a third predetermined value exists between thecorrection mechanism and the guide rail; and at least one sensorelectrically connected to a controller, wherein the controllercorrespondingly controls the correction mechanism by determining whethercorresponding detecting values of the sensor match with at least one ofthe first predetermined value, the second predetermined value and thethird predetermined value, wherein the first predetermined value is atleast one of a first predetermined clearance value and a firstpredetermined contact force value, the second predetermined value is atleast one of a second predetermined clearance value and a secondpredetermined contact force value, and the third predetermined value isat least one of a third predetermined clearance value and a thirdpredetermined contact force value.

In certain embodiments, the sensor is a clearance sensor, the clearancesensor is provided on the movable base body or the one of the guide rodsor the correction mechanism or the guide rail, and at least one of aclearance value between the one of the at least two guide rods and theinner wall of the corresponding one of the at least two receiving holes,a clearance value between the movable base body and the correctionmechanism, and a clearance value between the correction mechanism andthe guide rail being detected by the clearance sensor is equal to orgreater than zero; or the sensor is a force sensor, the force sensor isprovided on the movable base body or the one of the guide rods or thecorrection mechanism or the guide rail, and at least one of a contactforce value between the one of the at least two guide rods and the innerwall of the corresponding one of the at least two receiving holes, acontact force value between the movable base body and the correctionmechanism, and a contact force value between the correction mechanismand the guide rail being detected by the force sensor is equal to orgreater than zero; or the sensor is a strain sensor, the strain sensoris provided on the one of the guide rods, and the strain sensor detectsa deformation amount of the one of the guide rods.

In certain embodiments, the clearance sensor or the force sensor isprovided on the inner wall of the corresponding one of the at least tworeceiving holes and corresponds to a lower side of the one of the guiderods.

In certain embodiments, the movable base body is provided with a guidesleeve sleeved over the one of the guide rods, the guide sleeve islocated inside the corresponding one of the receiving holes, and theclearance sensor or the force sensor is provided on guide sleeve.

In certain embodiments, each of the guide rods is provided with aplurality of strain sensors, and the strain sensors are arranged along astraight line along an axial direction of the guide rods.

In certain embodiments, the sensor is a clearance sensor, the movablebase body has a movable mold base and a first mold fixed and connectedto one end of the movable mold base close to the fixed base body, andthe clearance sensor is provided between the movable mold base and thefixed base body and is adjacent to the first mold.

In certain embodiments, the clearance sensor is a contact-type clearancesensor, the correction mechanism is fixed and connected to the movablebase body, the correction mechanism has a lower supporting membersliding along the guide rail in association with the movable base body,and the contact-type clearance sensor is provided on the lowersupporting member and in contact with a lower end of the one of theguide rods.

In certain embodiments, a movable mold driving mechanism is fixed to oneend of the rack away from the fixed base body, one end of a guide postis connected to the movable mold driving mechanism and drives thereciprocal movement of the movable base body, and the sensor is atorsion sensor and is provided on the guide post or the movable molddriving mechanism.

In certain embodiments, the correction mechanism is fixed below themovable base body and slides along the guide rail in association withthe movable base body, the correction mechanism has an upper supportingmember fixed and connected to the movable base body and a correctiondriving mechanism connected to the upper supporting member, and thecorrection driving mechanism drives the upper supporting member toadjust the movement of the movable base body in the vertical direction.

In certain embodiments, when the correction driving mechanism is acorrection motor, the correction mechanism has a lower supporting membersliding along the guide rail in association with the movable base body,the upper supporting member is located between the lower supportingmember and the movable base body, and the correction motor is fixed tothe lower supporting member and drives the upper supporting member toadjust the movement of the movable base body in the vertical direction;and when the correction driving mechanism is an air cylinder or an oilcylinder, the air cylinder or the oil cylinder has at least oneaccommodating cavity and a piston provided between the upper supportingmember and the lower supporting member, the piston is receivedcorrespondingly in the accommodating cavity, and the piston is connectedto the upper supporting member and drives the upper supporting member toadjust the movement of the movable base body in the vertical direction.

In certain embodiments, the injection molding machine device includestwo sensors, wherein the movable base body has a gravity center, one ofthe two sensors is located closer to the fixed base body than the otherof the two sensors, the correction mechanism has a correction drivingmechanism located at one side of the gravity center close to the fixedbase body to drive the movement of the movable base body in the verticaldirection.

An injection molding machine device includes: a rack; at least one guiderail fixed to the rack; at least two guide rods, wherein one of two endsof each of the at least two guide rods is fixed to the rack; a fixedbase body fixed to one end of the rack, wherein the other of the twoends of each of the at least two guide rods is fixed to the fixed basebody; a movable base body provided directly opposite to the fixed basebody, wherein the movable base body is provided with at least tworeceiving holes to correspondingly receive the at least two guide rods,the movable base body slides along the at least two guide rods relativeto the fixed base body, and the movable base body has a predeterminedtilting angle value; at least one correction mechanism located betweenthe movable base body and the guide rail to adjust a movement of themovable base body in a vertical direction and to adjust a tilting angleof the movable base body; and at least one sensor electrically connectedto a controller, wherein the controller correspondingly controls thecorrection mechanism by determining whether a corresponding detectingvalue of the sensor matches with the predetermined tilting angle value.

In certain embodiments, the sensor is a tilting angle sensor; or theinjection molding machine device comprises at least two sensors providedat intervals along a sliding direction of the movable base body or thevertical direction, the controller correspondingly controls thecorrection mechanism by determining whether corresponding detectingvalues of the two sensors match with the predetermined tilting anglevalue.

In certain embodiments, the predetermined tilting angle value is zero,one of the two sensors is located closer to the fixed base body than theother of the two sensors, and the two sensors are located at a samehorizontal level.

In certain embodiments, the sensors are clearance sensors, the twoclearance sensors detect a first clearance value between one of the atleast two guide rods and an inner wall of a corresponding one of the atleast two receiving holes, or a second clearance value between themovable base body and the correction mechanism, or a third clearancevalue between the correction mechanism and the guide rail, and thecontroller obtains a tilting angle value of the movable base bodyaccording to at least one of a clearance variation amount of the firstclearance value, a clearance variation amount of the second clearancevalue and a clearance variation amount of the third clearance valuedetected by the two clearance sensors; or the sensors are heightsensors, and the controller obtains the tilting angle value of themovable base body according to height variation amounts of the twoclearance sensors at different heights.

In certain embodiments, the movable base body has a gravity center, thecorrection mechanism has a correction driving mechanism located at oneside of the gravity center close to the fixed base body to adjust thetilting angle of the movable base body.

In certain embodiments, the correction mechanism is fixed below themovable base body and slides along the guide rail in association withthe movable base body, the correction mechanism has two correctiondriving mechanisms respectively located at two sides of the gravitycenter along a sliding direction of the movable base body, the twocorrection driving mechanisms respectively adjust the tilting angle ofthe movable base body, the correction mechanism has an upper supportingmember, and the two correction driving mechanisms drive the uppersupporting member to adjust the tilting angle of the movable base body.

In certain embodiments, the correction mechanism has a lower supportingmember sliding along the guide rail in association with the movable basebody; when at least one of the correction driving mechanisms is acorrection motor, the upper supporting member is located between thelower supporting member and the movable base body, and the correctionmotor is fixed to the lower supporting member and drives the uppersupporting member to adjust the movement of the movable base body in thevertical direction; and when at least one of the correction drivingmechanisms is an air cylinder or an oil cylinder, the air cylinder orthe oil cylinder has at least one accommodating cavity and a pistonprovided between the upper supporting member and the lower supportingmember, the piston is received correspondingly in the accommodatingcavity, and the piston is connected to the upper supporting member anddrives the upper supporting member to adjust the movement of the movablebase body in the vertical direction.

In certain embodiments, the movable base body has two supportingpositions respectively located at two sides of the gravity center alonga sliding direction of the movable base body, the correction mechanismhas two correction driving mechanisms respectively providedcorresponding to the two supporting positions, and the two correctiondriving mechanisms individually apply supporting forces upward to thetwo supporting positions to correspondingly adjust the tilting angle ofthe movable base body.

In certain embodiments, the movable base body has a movable mold baseand a first mold fixed and connected to one end of the movable mold baseclose to the fixed base body, one side of the movable mold base close tothe fixed base body has an end surface, an extending portion is fixed tothe movable mold base or is integrally formed with the movable moldbase, the extending portion passes beyond the end surface and extends tobe located between the gravity center and the fixed base body, one ofthe two supporting positions is located on the extending portion andlocated at one side of the gravity center close to the fixed base body,and the correction driving mechanism is located below the extendingportion corresponding to the supporting positions.

In certain embodiments, the correction mechanism has an adjustingmechanism and at least one correction driving mechanism, the adjustingmechanism is connected to the correction driving mechanism to adjust thecorrection driving mechanism to move reciprocally along a slidingdirection of the movable base body, and the correction driving mechanismcorrespondingly adjust the tilting angle of the movable base body.

In certain embodiments, the correction mechanism has an upper supportingmember, the adjusting mechanism comprises an adjusting motor and anadjusting screw bolt connected to the adjusting motor, the adjustingmotor and the upper supporting member are both fixed to the movable basebody, the adjusting screw bolt is connected to the correction drivingmechanism to adjust the correction driving mechanism to movereciprocally along the sliding direction of the movable base body.

Compared with the related art, certain embodiments of the presentinvention has the following beneficial effects:

By providing the sensor to detect the clearances or contact forcesbetween different components, and providing the predetermined clearancevalues or the predetermined contact force values corresponding to thesensor, the controller may correspondingly control the correctionmechanism to adjust the movable base body by determining whethercorresponding detecting values of the sensor match with thepredetermined values, thereby knowing whether the movable base bodygenerates an acting force to the guide rods real-time and accurately,and correspondingly adjust the movable base body to reduce the actingforce applied to the guide rods, thus facilitating automation controlwithout manual adjustments, reducing the adjusting error of thecorrection mechanism such that the correction mechanism adjusts theheight of the movable base body more accurately, knowing the sinkingheight or tilting degree of the movable base body real-time andaccurately without obtaining the adjustment height of the movable basebody by manual estimation or repeated testing, reducing human cost andincreasing production efficiency, such that the adjustment height of themovable base body matches with the actual sinking height and tiltingheight, significantly reducing the acting force by the movable base bodyto the guide rods such that the wear of the movable base body and theguide rods is reduced, enhancing the usage life of the guide rods andthe movable base body, and correspondingly enhancing the life of theinjection molding machine device. Further, when multiple sensors areprovided, the controller may perform determination according to thedetecting values of the sensors and correspondingly control thecorrection mechanism, such that the moving position of the movable basebody is more accurate by multiple determinations.

These and other aspects of the present invention will become apparentfrom the following description of the preferred embodiment taken inconjunction with the following drawings, although variations andmodifications therein may be effected without departing from the spiritand scope of the novel concepts of the disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings illustrate one or more embodiments of thedisclosure and together with the written description, serve to explainthe principles of the disclosure. Wherever possible, the same referencenumbers are used throughout the drawings to refer to the same or likeelements of an embodiment, and wherein:

FIG. 1 is a perspective view of an injection molding machine deviceaccording to certain embodiments of the present invention.

FIG. 2 is a perspective exploded view of an injection molding machinedevice according to certain embodiments of the present invention.

FIG. 3 is a perspective view of a device body in FIG. 1.

FIG. 4 is a sectional view of FIG. 3 along the A-A direction.

FIG. 5 is a sectional view of FIG. 3 along the B-B direction.

FIG. 6 is a perspective exploded view of a correction mechanismaccording to certain embodiments of the present invention.

FIG. 7 is a perspective exploded view of a correction mechanism fromanother viewing angle according to certain embodiments of the presentinvention.

FIG. 8 is a schematic view of components of a correction mechanismaccording to certain embodiments of the present invention.

FIG. 9 is a control flowchart when the sensor is a clearance sensoraccording to certain embodiments of the present invention.

FIG. 10 is a sectional view of the device body when the clearance sensoris provided on the movable mold base according to other embodiments ofthe present invention.

FIG. 11 is an enlarged view of FIG. 10.

FIG. 12 is a structural schematic view of the clearance sensor beingprovided on the movable mold base according to other embodiments of thepresent invention.

FIG. 13 is a sectional view of the device body when the sensor is aforce sensor according to other embodiments of the present invention.

FIG. 14 is an enlarged view of FIG. 13.

FIG. 15 is a control flowchart when the sensor is a force sensoraccording to other embodiments of the present invention.

FIG. 16 is a perspective view of the device body when the sensor is atorsion sensor according to other embodiments of the present invention.

FIG. 17 is a control flowchart when the sensor is a torsion sensoraccording to other embodiments of the present invention.

FIG. 18 is a perspective view of the device body when the sensor is astrain sensor according to other embodiments of the present invention.

FIG. 19 is a sectional view of FIG. 18 along the C-C direction.

FIG. 20 is a control flowchart when the sensor is a strain sensoraccording to other embodiments of the present invention.

FIG. 21 is a sectional view of the device body when the sensor detectswhether the movable mold base is tilting according to other embodimentsof the present invention.

FIG. 22 is an enlarged view of FIG. 21.

FIG. 23 is a control flowchart when the sensor detects whether themovable mold base is tilting according to other embodiments of thepresent invention.

FIG. 24 is a schematic view showing the change of gravity center of themovable mold base without a first mold and with the first mold accordingto certain embodiments of the present invention.

FIG. 25 is a perspective view of the device body when the correctionmechanism is movable relative to the movable base body according toother embodiments of the present invention.

FIG. 26 is a structural schematic view of the correction mechanism whenthe correction mechanism is movable relative to the movable base bodyaccording to other embodiments of the present invention.

DETAILED DESCRIPTION

The present invention is more particularly described in the followingexamples that are intended as illustrative only since numerousmodifications and variations therein will be apparent to those skilledin the art. Various embodiments of the invention are now described indetail. Referring to the drawings, like numbers indicate like componentsthroughout the views. As used in the description herein and throughoutthe claims that follow, the meaning of “a”, “an”, and “the” includesplural reference unless the context clearly dictates otherwise. Also, asused in the description herein and throughout the claims that follow,the meaning of “in” includes “in” and “on” unless the context clearlydictates otherwise. Moreover, titles or subtitles may be used in thespecification for the convenience of a reader, which shall have noinfluence on the scope of the present invention.

It will be understood that when an element is referred to as being “on”another element, it can be directly on the other element or interveningelements may be present therebetween. In contrast, when an element isreferred to as being “directly on” another element, there are nointervening elements present. As used herein, the term “and/or” includesany and all combinations of one or more of the associated listed items.

Furthermore, relative terms, such as “lower” or “bottom” and “upper” or“top,” may be used herein to describe one element's relationship toanother element as illustrated in the Figures. It will be understoodthat relative terms are intended to encompass different orientations ofthe device in addition to the orientation depicted in the Figures. Forexample, if the device in one of the figures is turned over, elementsdescribed as being on the “lower” side of other elements would then beoriented on “upper” sides of the other elements. The exemplary term“lower”, can therefore, encompasses both an orientation of “lower” and“upper,” depending of the particular orientation of the figure.Similarly, if the device in one of the figures is turned over, elementsdescribed as “below” or “beneath” other elements would then be oriented“above” the other elements. The exemplary terms “below” or “beneath”can, therefore, encompass both an orientation of above and below.

As used herein, “around”, “about” or “approximately” shall generallymean within 20 percent, preferably within 10 percent, and morepreferably within 5 percent of a given value or range. Numericalquantities given herein are approximate, meaning that the term “around”,“about” or “approximately” can be inferred if not expressly stated.

As used herein, the terms “comprising”, “including”, “carrying”,“having”, “containing”, “involving”, and the like are to be understoodto be open-ended, i.e., to mean including but not limited to.

The description will be made as to the embodiments of the presentinvention in conjunction with the accompanying drawings in FIGS. 1-26.In accordance with the purposes of this invention, as embodied andbroadly described herein, this invention, in one aspect, relates to aninjection molding machine device.

Referring to FIG. 1 to FIG. 5, an injection molding machine device 100according to certain embodiments of the present invention includes ashell 1 and a device body 2. A controller 3 is provided on the shell 1to control the injection molding machine device 100. In otherembodiments, the controller 3 can be provided at other locations. Thedevice body 2 includes a rack 21, two guide rails 24 providedhorizontally and directly facing each other (in other embodiments, onlyone guide rail 24 is provided), and four guide rods 25 (in otherembodiments, two or three guide rods 25 are provided). Two adjacentguide rods 25 are provided to directly face each other. A fixed basebody 22 is fixed to a right end of the rack 21. The fixed base body 22includes a fixed mold base 221 fixed to the right end of the rack 21 anda second mold 222 fixed to the fixed mold base 221. One end of eachguide rod 25 is fixed to a left end of the rack 21, and the other end ofeach guide rod 25 is fixed to the fixed mold base 221. A movable basebody 23 is provided directly facing the fixed base body 22. The movablebase body 23 includes a movable mold base 231 and a first mold 232 fixedand connected to one end of the movable mold base 231 close to the fixedbase body 22. Four receiving holes 234 corresponding to the guide rods25 are provided at the peripheral area of the movable mold base 231. Inother embodiments, two or three receiving holes 234 can be provided tocorrespond to the quantity of the guide rods 25. The movable mold base231 is provided with four guide sleeves 233 correspondingly sleeved overthe guide rods 25. In other embodiments, two or three guide sleeves 233can be provided to correspond to the quantity of the guide rods 25. Theguide sleeves 233 are located in the receiving holes 234. A movable molddriving mechanism (not numbered) is fixed to one end of the rack 21 awayfrom the fixed base body 22. The movable base body 23 slides back andforth on the guide rods 25 relative to the fixed base body 22 by theaction of the movable mold driving mechanism to facilitate closing andopening of the mold. The movable mold driving mechanism is a motor 26.In other embodiments, the movable mold driving mechanism can be an aircylinder or an oil cylinder. One end of a guide post is connected to themotor 26 to drive the movable base body 23 to move reciprocally, and theguide post is a screw bolt 27. Two correction mechanisms 28 (in otherembodiments, one correction mechanism 28 or other amounts of correctionsmechanisms 28 can be provided) are fixed below the movable base body 23,and located between the movable base body 23 and the guide rails 24 (inother embodiments, the correction mechanisms 28 can be provided abovethe movable base body 23) to support the weight of the movable base body23. The correction mechanisms 28 are connected to a controller 3 toadjust the movement of the movable base body 23 in a vertical direction,and slide along the guide rails 24 in association with the movable basebody 23, thus reducing the action of the weight of the movable base body23 to the guide rods 25. A sensor 29 is connected to the controller 3.The controller 3 determines whether the movable base body 23 is sinkingand whether the movable base body 23 generates an acting force to theguide rods 25 according to detecting values of the sensor 29, therebycorrespondingly controlling the correction mechanisms 28 to adjust themovement of the movable base body 23 in the vertical direction. Byproviding the sensor 29, it is possible to know the sinking height ortilting degree of the movable base body 23 real-time and accurately,such that the adjustment height of the movable base body 23 matches withthe actual sinking height and tilting height, thereby reducing oreliminating the wear between the connecting mechanisms, and enhancingthe usage life of the guide rods 25 and the movable base body 23.

As shown in FIG. 3, FIG. 6 and FIG. 7, each of the correction mechanisms28 has an upper supporting member 281 (in other embodiments, two or moreupper supporting members 281 may be provided), which is fixed to themovable mold base 231 and slides over the guide rails 24 in associationwith the movable base body 23. The movable mold base 231 has an endsurface 2311, and one end of the upper supporting member 281 close tothe fixed base body 22 has an extending portion 2814 passing beyond theend surface 2311. In other embodiments, the extending portion 2814 maybe fixed to the movable mold base 231 or be integrally formed with themovable mold base 231, such that the correction mechanisms 28 generateacting forces to the movable base body 23. The extending portion 2814corresponds to a lower side of the first mold 232. Each of thecorrection mechanisms 28 further has a lower supporting member 282located above the guide rails 24 and below the upper supporting member281 to slide along the guide rails 24 in association with the movablebase body 23, and a plurality of correction driving mechanisms connectedto the upper supporting member 281 and drives the upper supportingmember 281 to adjust the movement of the movable base body 23 in thevertical direction. The movable base body 23 has a supporting position Qfor being supported by the correction mechanisms 28. The correctiondriving mechanism applies a supporting force to the movable mold base atthe supporting position Q to adjust the movement of the movable basebody 23 in the vertical direction. The supporting position Q is aposition corresponding to the acting force of the correction mechanisms28 to the movable base body 23. The upper supporting member 281 and thelower supporting member 282 are both plate shaped structures, thusincreasing the contact area of the movable base body 23, such that themovement of the movable base body 23 is more stable.

As shown in FIG. 6 and FIG. 7, the correction driving mechanisms are aircylinders 283. In other embodiments, the correction driving mechanismscan also be oil cylinders or correction motors. Each of the aircylinders 283 includes an accommodating cavity 2831 and a piston 2837corresponding received in the accommodating cavity 2831. The piston 2837is fixed to the upper supporting member 281 and drives the uppersupporting member 281 to adjust the movement of the movable base body 23in the vertical direction. In other embodiments, the piston 2837 canabut or be in other types of connection with the upper supporting member281. The lower supporting member 282 is provided with a plurality ofreceiving cavities 2831. In other embodiments, only one accommodatingcavity 2831 is provided, and the accommodating cavity 2831 can beprovided on the upper supporting member 281 or between the uppersupporting member 281 and the lower supporting member 282.

As shown in FIG. 6 and FIG. 7, the upper supporting member 281 islocated above the accommodating cavities 2831, and one side wall thereofis provided with a clamping portion 2811. A side wall of the clampingportion 281 is provided with two through holes 2812 to receive thefixing members (not shown) fixing the upper supporting member 281 andthe movable base body 23, and an upper surface thereof is fixedlyprovided with an additional plate 2813 to shield and protect the bottomedge of the side wall of the movable base body 23.

As shown in FIG. 6 to FIG. 8, a second side wall 2824 of the lowersupporting member 282 is provided with a protruding portion 2825corresponding to the clamping portion 2811, and the protruding portion2825 matches with the clamping portion 2811. Eight accommodatingcavities 2831 are provided, and each two of the accommodating cavities2831 form an accommodating cavity group. In a width direction of thelower supporting member 282, the two accommodating cavities 2831 of eachaccommodating cavity group are equally distanced from a first side wall2821 of the lower supporting member 282, and a distance D1 from a firstaccommodating cavity group 2832 to the first side wall 2821 is less thana distance D2 from a second accommodating cavity group 2833. In a lengthdirection of the lower supporting member 282, the first accommodatingcavity group 2832 and a third accommodating cavity group 2834 aresymmetrical, and the second accommodating cavity group 2833 and a fourthaccommodating cavity group 2835 are symmetrical. The third accommodatingcavity group 2834 and a portion of the fourth accommodating cavity group2835 are located below the extending portion 2814. Eight air cylinders283 are provided, and eight pistons 2837 are correspondingly provided.The eight pistons 2837 are respectively mounted in the accommodatingcavities 2831. The controller 3 drives the air cylinders 283 to adjustthe movement of the movable base body 23 in the vertical direction, andthe air cylinders 283 are provided symmetrically to ensure the movablebase body 23 are applied with balanced forces.

As shown in FIG. 6 and FIG. 7, a washer 2838 is provided between eachpiston 2837 and the upper supporting member 282, preventing the pistons2837 from being in direct contact with the upper supporting member 282and wear, and prolonging the usage life of the pistons 2837.

As shown in FIG. 6 and FIG. 8, in each accommodating cavity group, aventing hole 2836 is provided between the two accommodating cavities2831. A venting hole 2836 is provided between the two adjacentaccommodating cavities 2831 in the first accommodating cavity group 2832and the second accommodating cavity group 2833, and a venting hole 2836is provided between the two adjacent accommodating cavities 2831 in thethird accommodating cavity group 2834 and the fourth accommodatingcavity group 2835. A first air inlet 2822 and a second air inlet 2823are respectively provided at the left side and the right side of thefirst side wall 2821 of the lower supporting member 282. The first airinlet 2822 is in communication with the accommodating cavity 2831located at the leftmost side of the lower supporting member 282, and thesecond air inlet 2823 is in communication with the accommodating cavity2831 located at the rightmost side of the lower supporting member 282.By the first air inlet 2822 and the venting holes 2836 in the firstaccommodating cavity group 2832 and the second accommodating cavitygroup 2833, air pressure can be provided to the four air cylinders 283located at the left side of the lower supporting member 282. By thesecond air inlet 2823 and the venting holes 2836 in the thirdaccommodating cavity group 2834 and the fourth accommodating cavitygroup 2835, air pressure can be provided to the four air cylinders 283located at the right side of the lower supporting member 282.

As shown in FIG. 6 to FIG. 8, the two sides and the center of the lowersupporting member 282 are provided rolling bearings 285 (in otherembodiments, roller wheels or other rolling members may be installedinstead of the rolling bearings 285). The roller bearings 285 roll onthe upper surface of the guide rails 24, reducing the resisting force ofthe correction mechanisms 28 moving back and forth on the guide rails24.

As shown in FIG. 1 and FIG. 2, a level dial indicator 4 is providedbelow the movable base body 23 (in other embodiments, other testingmeters for detecting the height can be used). When the height of themovable base body 23 in the vertical direction is adjusted by airpressure, the dial indicator 4 can detect the height of the movable basebody 23, thus controlling the incoming air amount and adjusting themovable base body 23 to the appropriate height.

As shown in FIG. 6 to FIG. 8, each of the first air inlet 2822 and thesecond air inlet 2823 respectively receives an inlet pipe 284. Anotherend of the inlet pipe 284 is provided with a back pressure valve (notshown) to prevent the air pressure in the air cylinders 283 fromreducing to cause the height of the movable base body 23 to decrease,thereby stabilizing the height of the movable base body 23, and ensuringthe precision of the injection molding products.

As shown in FIG. 4 to FIG. 6, the sensor 29 is a clearance sensor 291.The clearance sensor 291 is used to detect the clearances between theguide rods 25 and the inner walls of the corresponding receiving holes234, thereby obtaining the corresponding detecting values. The clearancesensor 291 is provided outside the movable base body 23 to facilitatemounting of the clearance sensor 291. In this case, the clearance valuebetween the clearance sensor 291 and the guide rods 25 being detected bythe clearance sensor 291 is equal to or greater than zero. In otherembodiments, the clearance sensor 291 may also be provided on themovable base body 23, such as being provided on the inner walls of thereceiving holes 234 or on the guide rods 25, in order to directly detectthe clearances between the guide rods 25 and the inner walls of thecorresponding receiving holes 234.

In this embodiment, one clearance sensor 291 is provided, which is acontact-type clearance sensor 291. In other embodiments, multipleclearance sensors 291 can be provided, and the controller 3 may reducethe detection error by multiple determinations, such that the detectingresult becomes more accurate. The contact-type clearance sensor 291facilitates saving of the mounting space thereof. The contact-typeclearance sensor 291 is provided between the movable base body 23 andthe fixed base body 22 and is adjacent to the first mold 232, and isprovided on the lower supporting member 282 and in contact with thelower end of the guide rods 25. In other embodiments, the clearancesensor 291 can be a non-contact type clearance sensor 291 located belowthe guide rods 25 without being in contact with the guide rods 25, suchas an infrared distance measuring sensor, and the clearance sensor 291can also be provided above the guide rods 25. Thus, the clearance sensor291 may detect the clearance values between the guide rods 25 and thecorresponding receiving holes 234.

The one side of the movable base body 23 having the first mold 232 has agreater weight. Thus, each of the guide rods 25 receives a greaterdownward acting force at the end adjacent to the first mold 232, suchthat the deformation amounts of the guide rods 25 are relatively larger,the clearance variation detected by the clearance sensor 291 becomesmore significant, and the detecting result becomes more intuitive andaccurate. Correspondingly, the adjustment of the correction mechanism 28to the movable base body 23 is more accurate. In addition, the lowerends of the guide rods 25 are the positions of the guide rods 25 havinggreater deformation amounts, which may significantly obtain thevariation amounts of the clearances. The clearance sensor 291 is mountedon the correction mechanisms 28, facilitating the mounting of theclearance sensor 291 and the electronic line arrangementscorrespondingly with the correction mechanisms 28. The clearance sensor291 slides on the guide rails 24 with the correction mechanisms 28. Inthe process, the clearance sensor 291 detects the deformation amounts ofthe guide rods 25 at different positions of the guide rods 25, such thatthe controller 3 correspondingly controls the correction mechanisms 28to adjust the movement of the movable base body 23 in the verticaldirection in the sliding process, thus reducing the acting force appliedto the guide rods 25 in the sliding process of the movable base body 23,such that the guide rods 25 are protected in the longer stroke, furtherenhancing the usage life of the guide rods 25 and the movable base body23, and allowing the movable base body 23 and the fixed base body 22 todirect act in closing the mold without waiting for the adjustment of themovable base body 23, and enhancing the production efficiency.

As shown in FIG. 9, a predetermined clearance value exists between theguide rods 25 and the inner walls of the corresponding receiving holes234. The predetermined clearance value is a base value configured in thecontroller 3 for the case when the movable base body 23 does notgenerate an acting force to the guide rods 25. The predeterminedclearance value can be a single value or a range value, which is basedon the movable base body 23 not generating an acting force to the guiderods 25. The movable base body 23 sinks or tilts due to the gravity,such that the guide rods 25 are applied with forces and deform, and theclearances between the guide rods 25 and the inner walls of thecorresponding receiving holes 234 change. Thus, the controller 3determines whether the corresponding detecting values of the clearancesensor 291 match with the predetermined clearance value tocorrespondingly control the correction mechanisms 28. For example, thepredetermined clearance value is set to be 0.05-0.08. When the clearancesensor 291 detects the clearance value between the guide rods 25 and theinner walls of the corresponding receiving holes 234 to be less than0.05, the controller 3 determines that the movable base body 23 issinking. Thus, the controller 3 correspondingly controls the correctiondriving mechanism to drive the upper supporting member 281, thusadjusting the movable base body 23 to move upward as a whole until thedetecting value of the clearance sensor 291 is in the range of0.05-0.08. Similarly, when the clearance sensor 291 detects theclearance value between the guide rods 25 and the inner walls of thecorresponding receiving holes 234 to be greater than 0.08, thecontroller 3 correspondingly controls the correction driving mechanismto adjust the movable base body 23 to move downward as a whole until thedetecting value of the clearance sensor 291 is in the range of0.05-0.08. It should be noted that the controller 3 correspondinglyadjusts the movable base body 23 according to the correspondingdetecting values of the sensor 29, and the detecting values of thesensor 29 is variable. Thus, the adjusting process of the controller 3to the movable base body 23 is dynamically changing.

Accordingly, by providing the clearance sensor 291, it is possible toknow the sinking height or tilting degree of the movable base body 23real-time and accurately without obtaining the adjustment height of themovable base body 23 by manual estimation or repeated testing, reducinghuman cost and increasing production efficiency, such that theadjustment height of the movable base body 23 matches with the actualsinking height and tilting height, significantly reducing the actingforce by the movable base body 23 to the guide rods 25, such that thewear of the movable base body 23 and the guide rods 25 is reduced,enhancing the usage life of the guide rods 25 and the movable base body23.

As shown in FIG. 3 and FIG. 24, the movable base body 23 has a gravitycenter P. The extending portion 2814 at least partially extends to belocated between the gravity center P and the fixed base body 22. Thelocation of the gravity center P is variable. Taking the one end of themovable base body 23 connecting to the movable mold driving mechanism asa fixed end, and the other end of the movable base body 23 close to thefixed base body 22 as a free end, the fixed end is applied with abinding force and is more stable relative to the free end. In thisembodiment, the fixed base body 22 is located at the right side of themovable base body 23, such that the free end is located at the rightside of the fixed end, the extending portion 2814 extends to the rightside of the gravity center P, and one of the supporting positions Q islocated on the extending portion 2814 and located at the right side ofthe gravity center P. The air cylinder 283 located at the right side ofthe gravity center P corresponds to the supporting position Q and islocated below the extending portion 2814.

As shown in FIG. 9 and FIG. 24, it is configured that the weight of themovable mold base 231 is 200 N, and the weight of the first mold 232 is300 N. When the movable base body 23 does not have the first mold 232,the gravity center P of the movable base body 23 is the gravity center Pof the movable mold base 231. When the movable base body 23 sinks, toadjust the whole movement height of the movable base body 23, two of thesupporting positions Q are respectively located at two sides of thegravity center P, and two of the air cylinders 283 correspond to the twosupporting positions Q and are located below the extending portion 2814.In this case, the controller 3 controls the two air cylinders 283 torespectively drive the movable base body 23. Assuming a distance L1between the supporting position Q located at the left side of thegravity center P and the gravity center P is lm, and a distance L2between the supporting position Q located at the right side of thegravity center P and the gravity center P is lm, the controller 3controls the two air cylinders 283 to provide balanced torques at thetwo sides of the gravity center P, such that the movable base body 23moves upward as a whole, and a total supporting force of the aircylinders 283 at the two sides of the gravity center P to the movablebase body 23 is greater than the weight of the movable base body 23. Inother words, a supporting force of the air cylinder 283 at the left sideof the gravity center P to the movable base body 23 can be 120 N, and asupporting force of the air cylinder 283 at the right side of thegravity center P to the movable base body 23 is correspondingly 120 N.Thus, the torques at the two sides of the gravity center P areequivalent and balanced to each other, and the total supporting force isgreater than 200 N. When the movable base body 23 is adjusted such thatthe detecting value of the clearance sensor 291 is the predeterminedclearance value, the supporting force of the air cylinder 283 at theleft side of the gravity center P to the movable base body 23 can be 100N, and the supporting force of the air cylinder 283 at the right side ofthe gravity center P to the movable base body 23 is correspondingly 100N, thus ensuring the height of the movable base body 23 to be unchanged.

When the movable base body 23 has the first mold 232, the gravity centerP of the movable base body 23 moves rightward relative to the gravitycenter P of the movable mold base 231. For description purposes, thelocation of the gravity center P is configured to be outside the movablemold base 231. To adjust and control the movable base body 23 to moveupward as a whole, that is, to adjust the whole movement height of themovable base body 23 having the first mold 232, two of the supportingpositions Q are respectively located at two sides of the gravity centerP which has been moved rightward, and two of the air cylinders 283correspond to the two supporting positions Q and are located below theextending portion 2814. In this case, the controller 3 controls the twoair cylinders 283 to respectively drive the movable base body 23.Assuming a distance L1 between the supporting position Q located at theleft side of the gravity center P and the gravity center P is 2m, and adistance L2 between the supporting position Q located at the right sideof the gravity center P and the gravity center P is lm, the controller 3controls the two air cylinders 283 to provide balanced torques at thetwo sides of the gravity center P, such that the movable base body 23moves upward as a whole, and a total supporting force of the aircylinders 283 at the two sides of the gravity center P to the movablebase body 23 is greater than the weight of the movable base body 23. Inother words, the supporting force of the air cylinder 283 at the leftside of the gravity center P to the movable base body 23 can be 180 N,and the supporting force of the air cylinder 283 at the right side ofthe gravity center P to the movable base body 23 can be 360 N. Thus, thetorques at the two sides of the gravity center P are equivalent andbalanced to each other, and the total supporting force is greater thanSOON, until the detecting value of the clearance sensor 291 is thepredetermined clearance value. Then, the total supporting force of theair cylinders 283 at the two sides of the gravity center P to themovable base body 23 is adjusted to be equal to the weight of themovable base body 23. In other words, the supporting force of the aircylinder 283 at the left side of the gravity center P to the movablebase body 23 can be 167 N, and the supporting force of the air cylinder283 at the right side of the gravity center P to the movable base body23 can be 333 N, thus ensuring the height of the movable base body 23 tobe unchanged. The controller 3 may control one or more of the aircylinders 283 located at the right side of the gravity center P tosimultaneously adjust the movable base body 23. Similarly, thecontroller 3 may control one or more of the air cylinders 283 located atthe left side of the gravity center P to simultaneously adjust themovable base body 23, such that the correction mechanisms 28correspondingly adjust the movable base body 23.

In other embodiments, when only one correction driving mechanism isprovided, the correction driving mechanism may be located right above orright below the gravity center P of the movable base body 23. In thiscase, the controller 3 controls the correction driving mechanism toadjust the movable base body 23 to move upward as a whole. A totalsupporting force of the correction driving mechanism to the movable basebody 23 is in an opposite direction to the gravity center P and isgreater than the weight of the movable base body 23, until the detectingvalue of the clearance sensor 291 is the predetermined clearance value.Then, the total supporting force of the correction driving mechanism tothe movable base body 23 is adjusted to be equal to the weight of themovable base body 23, thus ensuring the height of the movable base body23 to be unchanged.

In other embodiments, as shown in FIG. 10 to FIG. 12, the clearancesensors 291 may be fixed to the movable mold base 231 corresponding tothe receiving holes 234. In other embodiments, the clearance sensors 291may also be provided on the guide sleeves. Two clearance sensors 291 areprovided and located at two ends of the receiving holes 234 in its axialdirection, and the two clearance sensors 291 pass through the guidesleeves 233 to be in contact with the lower end of the guide rods 25.The guide sleeves 233 have corresponding reserved space for theclearance sensors 291 to mount thereon. In this case, the clearancesensors 291 may directly detect the clearance between the inner walls ofthe receiving holes 234 and the guide rods 25, and the detection can beconducted without waiting until the guide rods 25 deform, such that thecontroller 3 may adjust the movement of the movable base body 23 in thevertical direction real-time, preventing the guide rods 25 fromdeformation under forces and wear.

As shown in FIG. 13 to FIG. 20, in other embodiments, the sensor 29 maybe a force sensor 292 or a torsion sensor 293 or a stress sensor 294, orother types of sensors 29 which are not hereinafter limited thereto, fordetecting the contact force between the guide rods 25 and the innerwalls of the corresponding receiving holes 234, and thus obtaining thecorresponding detecting values.

As shown in FIG. 13 to FIG. 15, when the sensor 29 is a force sensor292, the force sensor 292 is provided on the guide sleeves 233. In otherembodiments, the force sensor 292 may also be provided on the guide rods25. The force sensor 292 detects the contact force value of the guiderods 25 to the inner walls of the receiving holes 234, which is equal toor greater than zero. The force sensor 292 is provided on the guidesleeves 233, and each guide sleeve 233 has a smaller size relative tothe movable mold base 231. Correspondingly, it is easier and moreconvenient to machine the guide sleeves 233 and to mount the forcesensor 292, which facilitates the mounting of the force sensor 292 andthe convenience for the detachment and replacement of the force sensor292. Further, the force sensor 292 moves together with the sliding ofthe movable base body 23, such that the guide rods 25 are more protectedin the sliding stroke, further enhancing the usage life of the guiderods 25 and the movable base body 23.

As shown in FIG. 15, a predetermined contact force value exists betweenthe guide rods 25 and the inner walls of the corresponding receivingholes 234. The predetermined contact force value is a base valueconfigured in the controller 3 for the case when the movable base body23 does not generate an acting force to the guide rods 25. Thepredetermined contact force value can be a single value or a rangevalue, which is based on the movable base body 23 not generating anacting force to the guide rods 25. The movable base body 23 sinks ortilts due to the gravity, such that the guide rods 25 are in contactwith the inner walls of the corresponding receiving holes 234 andgenerates a variable contact force. Thus, the controller 3 determineswhether the corresponding detecting values of the force sensor 292 matchwith the predetermined contact force value to correspondingly controlthe correction mechanisms 28. For example, the predetermined contactforce value is set to be zero. When the force sensor 292 detects thecontact force value between the guide rods 25 and the inner walls of thecorresponding receiving holes 234 to be greater than zero, thecontroller 3 determines that the movable base body 23 is sinking. Thus,the controller 3 correspondingly controls the correction drivingmechanism to drive the upper supporting member 281, thus adjusting themovable base body 23 to move upward as a whole until the detecting valueof the force sensor 292 is zero, thus significantly reducing the actingforce by the movable base body 23 to the guide rods 25, preventing fromthe wear of the movable base body 23 and the guide rods 25, andenhancing the usage life of the guide rods 25 and the movable base body23.

As shown in FIG. 16 to FIG. 17, when the sensor 29 is a torsion sensor293, the torsion sensor 293 is provided on the motor 26. In otherembodiments, the torsion sensor 293 may also be provided on the screwbolt 27. After the guide rods 25 receive the acting force of the movablebase body 23, a contact force exists between the guide rods 25 and theinner walls of the corresponding receiving holes 234, whichcorrespondingly generate a friction. Correspondingly, the torsion of themotor 26 increases, such that the screw bolt 27 has a greater drivingforce to drive the movable base body 23 to move reciprocally. Thus, bychecking the torsion of the motor 26, it is possible to detect thechange of the driving force of the screw bolt 27 to the movable basebody 23, thereby detecting the contact force between the guide rods 25and the inner walls of the corresponding receiving holes 234. Thepredetermined contact force value exists between the guide rods 25 andthe inner walls of the corresponding receiving holes 234. Thepredetermined contact force value is a base value configured in thecontroller 3 for the case when the movable base body 23 does notgenerate an acting force to the guide rods 25. The predetermined contactforce value can be a single value or a range value, which is based onthe movable base body 23 not generating an acting force to the guiderods 25. The movable base body 23 sinks or tilts due to the gravity,such that the guide rods 25 are in contact with the inner walls of thecorresponding receiving holes 234 and generates a variable contactforce, which makes the friction thereof to change. Thus, the controller3 determines whether the corresponding detecting values of the torsionsensor 293 match with the predetermined contact force value tocorrespondingly control the correction mechanisms 28. For example, thepredetermined contact force value is set to be zero. When the torsionsensor 293 detects the contact force value between the guide rods 25 andthe inner walls of the corresponding receiving holes 234 to be greaterthan zero, it is determined that the friction exists between the guiderods 25 and the inner walls of the corresponding receiving holes 234,such that the screw bolt 27 requires a greater driving force to drivethe movable base body 23 to move. Thus, the controller 3 correspondinglycontrols the correction driving mechanism to drive the upper supportingmember 281, thus adjusting the movable base body 23 to move upward as awhole until the detecting value of the torsion sensor 293 is zero.

As shown in FIG. 18 to FIG. 20, when the sensor 29 is a strain sensor294, each of the guide rods 25 is provided with six strain sensors 294exposed at an outer surface of each guide rod 25 to facilitate themounting of the strain sensors 294. In other embodiments, each of theguide rods 25 may be provided with one or more strain sensors 294. Eachof the two opposite ends of each guide rod 25 along its axialcross-section is provided with three strain sensors 294 at intervals. Inother embodiments, the strain sensors 294 may be located at a lower endof each guide rod 25, as the lower end of each guide rod 25 is theposition where the deformation amount of each guide rod 25 is greater,to significantly detect the deformation amount of each guide rod 25. Thethree strain sensors 294 are aligned in a straight line along an axialdirection of each guide rod 25. After the guide rods 25 receives theacting force of the movable base body 23, the guide rods 25 generatedeformation. By detecting the deformation amounts of the guide rods 25at different portions, the force application at different portions ofeach guide rod 25 can be detected, and the contact force between theguide rods 25 and the inner walls of the corresponding receiving holes234 can be correspondingly detected. Further, the detection error can bereduced by determining altogether the force application of the guiderods 25 with the detecting values at different portions thereof.Moreover, the strain sensors 294 are aligned in a straight line alongthe axial direction of each guide rod 25, which eliminates the errors ofthe strain sensors 294 in different heights at different positions ofeach guide rod 25, thus reducing the detection error, such that thedetection result becomes more accurate, and the controller 3 maydetermine whether the adjustments by the correction mechanisms 28 are inplace more accurately. A predetermined contact force value existsbetween the guide rods 25 and the inner walls of the correspondingreceiving holes 234. The predetermined contact force value is a basevalue configured in the controller 3 for the case when the movable basebody 23 does not generate an acting force to the guide rods 25. Thepredetermined contact force value can be a single value or a rangevalue, which is based on the movable base body 23 not generating anacting force to the guide rods 25. Each of the strain sensor 294corresponds to a predetermined contact force value. The predeterminedcontact force value is set to be zero. When the strain sensors 294detect the deformation amount of each guide rod 25 to be greater thanzero, the controller 3 determines that the movable base body 23 issinking, such that a contact force is generated between the guide rods25 and the inner walls of the corresponding receiving holes 234 to makethe guide rods 25 deform. Thus, the controller 3 correspondinglycontrols the correction driving mechanisms to drive the upper supportingmember 281, thus adjusting the movable base body 23 to move upward as awhole until the corresponding detecting values of the strain sensors 294is zero.

In other embodiments, the sinking or tilting of the movable base body 23increases the pressure to the correction mechanisms 28, causing theclearance and the contact force between the movable base body and thecorrection mechanisms 28 to change. Thus, the sensor 29 maycorrespondingly detect the clearance and the contact force between themovable base body 23 and the correction mechanisms 28, and therebyobtaining corresponding detecting values. The predetermined clearancevalue and the predetermined contact force value are base values betweenthe movable base body 23 and the correction mechanisms 28 for the casewhen the movable base body 23 does not generate an acting force to theguide rods 25. In this case, the sensor 29 may be provided at the bottomend of the movable base body 23 or the top end of the correctionmechanisms 28, such that the sensor 29 may detect the clearance andcontact force between the movable base body 23 and the correctionmechanisms 28. In addition, the sinking or tilting of the movable basebody 23 increases the pressure to the correction mechanisms 28, therebyincreasing the pressure to the guide rails 24, causing the clearance andthe contact force between the correction mechanisms 28 and the guiderails 24 to change. Thus, the sensor 29 may correspondingly detect theclearance and the contact force between the correction mechanisms 28 andthe guide rails 24, and thereby obtaining corresponding detectingvalues. The predetermined clearance value and the predetermined contactforce value are base values between the correction mechanisms 28 and theguide rails 24 for the case when the movable base body 23 does notgenerate an acting force to the guide rods 25. In this case, the sensor29 may be provided at the bottom end of the correction mechanisms 28 orthe top end of the guide rails 24, such that the sensor 29 may detectthe clearance and contact force between the correction mechanisms 28 andthe guide rails 24.

In other embodiments, multiple sensors 29 with different detectingfunctions may be provided altogether to detect whether the movable basebody 23 generates an acting force to the guide rods 25, such that thecontroller 3 may perform determinations according to the detectingvalues of the sensors 29 and correspondingly control the correctionmechanisms 28, reducing the detection error by multiple determinations,such that the detecting result becomes more accurate, and the controller3 may determine whether the adjustments by the correction mechanisms 28are in place more accurately, such that the moving position of themovable base body 23 is more accurate. For example, a sensor 29 fordetecting the clearance value and a sensor 29 for detecting the contactforce value can be provided simultaneously. Specifically, a clearancesensor 291 and a force sensor 292 can be provided simultaneously. Theclearance sensor 291 is used to detect the clearance between the guiderods 25 and the inner walls of the corresponding receiving holes 234 toobtain the corresponding detecting values, and the force sensor 292 isused to detect the contact force between the guide rods 25 and the innerwalls of the corresponding receiving holes 234 to obtain thecorresponding detecting values. Further, in other embodiments, a sensor29 may be provided to not only detect the clearance value but alsodetect the contact force value. In other words, the sensor 29 isintegrated by a sensor 29 for detecting the clearance value and a sensor29 for detecting the contact force value. For example, the sensor may bean integration of the clearance sensor 291 and the force sensor 292.

Further, the fixed end is applied with a binding force and is morestable relative to the free end. Thus, the free end sinks more easilyrelative to the fixed end, thereby causing the movable base body 23 totilt easily. In addition, the free end of the movable base body 23 hasthe first mold, such that the sinking height of the free end is greaterand more significantly relative to the fixed end, and the tilting anglea of the movable base body 23 is greater. When the movable base body 23tilts, all components of the movable base body 23 except for the gravitycenter P rotate about the gravity center P, and move along the slidingdirection of the movable base body 23. As shown in FIG. 21 to FIG. 22,in other embodiments, at least two sensors 29 are provided at intervalsto form a connecting line, such that the controller 3 may determinewhether the movable base body 23 tilts by the detecting values of thetwo sensors 29, and correspondingly control the correction mechanisms 28to drive the movement of the movable base body 23 in the verticaldirection and to adjust the tilting angle a of the movable base body 23,such that the tilting angle a of the movable base body 23 is reduced,thus reducing the acting force to the guide rods 25 due to the tiltingof the movable base body 23, preventing the movable base body 23 and theguide rods 25 from wear, and enhancing the usage life of the guide rods25 and the movable base body 23. Thus, the two sensors 29 are providedat positions where deviation occurs when the movable base body 23 tilts.That is, the two sensors 29 are provided along the sliding direction orthe vertical movement direction of the movable base body 23. Further,one of the sensors 29 is close to the fixed base body 22 relative to theother sensor 29, such that the positions of the two sensors 29 changesignificantly, facilitating the detecting values of the sensors 29 to bemore accurate and changing more significantly, allowing the controller 3to determine the tilting degree of the movable base body 23 moreaccurately, and to control the correction mechanisms 28 to adjust themovement height of the movable base body 23 in the vertical direction.The two sensors 29 can be the same, or can be different, as long as theymay be used to determine whether the movable base body 23 tilts. Forexample, the two sensors 29 can be both clearance sensors 291, or can beboth force sensors 292, or can be both height sensors. Alternatively,one of the sensors 29 can be the clearance sensor 291, and the othersensor 29 is the force sensor 292, etc. Further examples are nothereinafter elaborated.

As shown in FIG. 21 to FIG. 22, four sensors 29 are provided, and areall clearance sensors 291 for detecting the clearance values between theguide rods 25 and the inner walls of the receiving holes 234. The fourclearance sensors 291 are fixed to the movable mold base 231corresponding to the receiving holes 234. The four clearance sensors 291include a first clearance sensor 2911, a second clearance sensor 2912, athird clearance sensor 2913, and a fourth clearance sensor 2914. Thefirst clearance sensor 2911 and the fourth clearance sensor 2914 areprovided at intervals along an axial direction of the inner wall of thereceiving hole 234, and are located at a top end of the inner wall ofthe receiving hole 234. The second clearance sensor 2912 and the thirdclearance sensor 2913 are provided at intervals along an axial directionof the inner wall of the receiving hole 234, and are located at a bottomend of the inner wall of the receiving hole 234. Specifically, the firstclearance sensor 2911 and the second clearance sensor 2912 are locatedat a right end along the axial direction of the inner wall of thereceiving hole 234, and the third clearance sensor 2913 and the fourthclearance sensor 2914 are located at a left end along the axialdirection of the inner wall of the receiving hole 234. Multiplepredetermined clearance values exists between the guide rods 25 and theinner walls of the receiving holes 234, and each of the clearancesensors 291 corresponds to one of the predetermined clearance values.The controller 3 determines whether the corresponding detecting valuesof the four clearance sensors 291 match with the predetermined clearancevalues to correspondingly control the correction mechanisms 28. Forexample, the four predetermined clearance values are all set to be 0.05.When the movable base body 23 only sinks, the detecting values of thefirst clearance sensor 2911 and the fourth clearance sensor 2914 arechanged to be less than 0.05, and the detecting values of the secondclearance sensor 2912 and the third clearance sensor 2913 are changed tobe greater than 0.05. In this case, the controller 3 correspondinglycontrols the correction driving mechanism to adjust the movable basebody 23, such that the detecting values of the four clearance sensors291 correspondingly match with the predetermined clearance values. Whenthe movable base body 23 only tilts, the detecting values of the firstclearance sensor 2911 and the third clearance sensor 2913 are changed tobe less than 0.05, and the detecting values of the second clearancesensor 2912 and the fourth clearance sensor 2914 are changed to begreater than 0.05. In this case, the controller 3 correspondinglycontrols the correction driving mechanism to adjust the movable basebody 23, such that the detecting values of the four clearance sensors291 correspondingly match with the predetermined clearance values. Whenthe movable base body 23 sinks and tilts simultaneously, the detectingvalue of the first clearance sensor 2911 is less than the detectingvalue of the fourth clearance sensor 2914, and both are less than 0.05;and the detecting value of the second clearance sensor 2912 is greaterthan the detecting value of the third clearance sensor 2913, and bothare greater than 0.05. In this case, the controller 3 correspondinglycontrols the correction driving mechanism to adjust the movable basebody 23, such that the detecting values of the four clearance sensors291 correspondingly match with the predetermined clearance values.

As shown in FIG. 24, to adjust the tilting angle a of the movable basebody 23, at least two supporting positions Q are provided, and arerespectively located at the two sides of the gravity center P, and twocorrection driving mechanisms are provided corresponding to the twosupporting positions Q. The controller 3 controls the two correctiondriving mechanisms to individually apply supporting forces upward to thesupporting positions Q to correspondingly adjust the tilting angle a ofthe movable base body 23, such that the detecting values of the sensor29 finally match with the corresponding predetermined values.

As shown in FIG. 24, it is configured that the weight of the movablemold base 231 is 200 N, the weight of the first mold 232 is 300 N, andthe location of the gravity center P is configured to be outside themovable mold base 231. A distance L1 between the supporting position Qlocated at the left side of the gravity center P and the gravity centerP is 2m, and a distance L2 between the supporting position Q located atthe right side of the gravity center P and the gravity center P is lm.When the movable base body 23 only tilts, the supporting forces of thecorrection driving mechanisms to the movable base body 23 are in anopposite direction to the gravity direction of the movable base body 23,and a total supporting force of the two correction driving mechanisms tothe movable base body 23 is equal to the weight of the movable base body23. Further, the torque at the right side of the gravity center P isgreater than the torque at the left side of the gravity center. In otherwords, the supporting force of the air cylinder 283 at the left side ofthe gravity center P to the movable base body 23 can be 125 N, and thesupporting force of the air cylinder 283 at the right side of thegravity center P to the movable base body 23 can be 375 N, such that thefree end of the movable base body 23 rotates counterclockwise relativeto the fixed end thereof, thus reducing the tilting angle a of themovable base body 23, such that the detecting value of the sensor 29reaches the corresponding predetermined value, thereby allowing themovable base body 23 not to tilt or reducing the tilting angle, suchthat the acting force of the movable base body 23 to the guide rods 25is reduced. When the detecting value of the sensor 29 reaches thecorresponding predetermined value, the controller 3 controls the torqueat the right side of the gravity center P to be equivalent and balancedto the torque at the left side of the gravity center P. That is, thesupporting force of the air cylinder 283 at the left side of the gravitycenter P to the movable base body 23 can be 167 N, and the supportingforce of the air cylinder 283 at the right side of the gravity center Pto the movable base body 23 can be 333 N. When the movable base body 23sinks and tilts simultaneously, the total supporting force of the twocorrection driving mechanisms to the movable base body 23 is greaterthan the weight of the movable base body 23, such that the movable basebody 23 moves upward as a whole. In other words, the supporting force ofthe air cylinder 283 at the left side of the gravity center P to themovable base body 23 can be 135 N, and the supporting force of the aircylinder 283 at the right side of the gravity center P to the movablebase body 23 can be 405 N, such that the free end of the movable basebody 23 rotates counterclockwise relative to the fixed end thereof, thusreducing the tilting angle a of the movable base body 23, therebyallowing the movable base body 23 not to tilt or reducing the tiltingangle, such that the supporting force of the movable base body 23 to theguide rods 25 is reduced, until the detecting value of the sensor 29reaches the predetermined value. In this case, the controller 3 controlsthe torque at the right side of the gravity center P to be equivalentand to the torque at the left side of the gravity center P, and thetotal supporting force of the two correction driving mechanisms to themovable base body 23 is equal to the weight of the movable base body 23.That is, the supporting force of the air cylinder 283 at the left sideof the gravity center P to the movable base body 23 can be 167 N, andthe supporting force of the air cylinder 283 at the right side of thegravity center P to the movable base body 23 can be 333 N, thuspreventing the movable base body 23 from sinking and tilting. In theprocess of adjusting the tilting angle a of the movable base body 23,the two correction driving mechanisms respectively drive the movablebase body 23 at the two sides of the gravity center P to move atdifferent heights, such that the detecting values of the sensor 29finally match with the corresponding predetermined values, and therebyallowing the movable base body 23 to receive a balanced force as awhole.

In other embodiments, two or more upper supporting members 281 areprovided. In this case, the two upper supporting member 281 arerespectively located at the two sides of the gravity center P along thesliding direction of the movable base body 23, and each of the uppersupporting members 281 is correspondingly connected to at least one ofthe correction driving mechanisms. The two correction driving mechanismsrespectively correspond and drive the upper supporting members 281 toadjust the tilting angle a of the movable base body 23, such that themovable base body 23 receive forces at the two sides of the gravitycenter P, and the acting force applied to the guide rods 25 are reduced,thus reducing the wear of the movable base body 23 and the guide rods25. Further, the two upper supporting member 281 have differentsupporting forces, allowing the movable base body 23 to be adjusted bydifferent movement heights along the tilting direction, such that thedetecting values of the two sensors 29 respectively reach thepredetermined tilting angle values, thereby allowing the movable basebody 23 to be more balanced. In addition, the two upper supportingmember 281 are respectively connected to different correction drivingmechanisms, facilitating integration of the driving force of eachcorrection driving mechanism to the corresponding upper supportingmember 281 and acting on the corresponding position of the movable basebody 23, thereby reducing the loss of energy.

In other embodiments, the correction driving mechanisms are movablerelative to the movable base body 23 along the sliding direction of themovable base body 23, and may move to different supporting positions Q.The controller 3 controls the correction driving mechanisms tocorrespondingly adjust the movable base body 23. In this case, fewercorrection driving mechanisms may be provided, or only one correctiondriving mechanism is provided, to adapt to the position change of thegravity center P of the movable base body 23, and correspondingly adjustthe movable base body 23, without providing multiple correction drivingmechanisms, thus ensuring the correction driving mechanism adapts to theposition change of the gravity center P of the movable base body 23,reducing the quantity of the correction driving mechanism, and savingthe cost of the correction driving mechanism. The controller 3 maycontrol one or more of the correction driving mechanisms to moverelative to the movable base body 23, and to correspondingly adjust themovable base body 23.

When the controller 3 only controls one correction driving mechanism toadjust the movable base body 23, as shown in FIG. 24, the controller 3controls the correction driving mechanism to move right below or rightabove the gravity center P. The direction of the supporting force of thecorrection driving mechanism to the movable base body 23 is opposite tothe gravity direction of the movable base body 23, and the supportingforce of the correction driving mechanism to the movable base body 23 isgreater than the weight of the movable base body 23, such that themovable base body 23 moves upward as a whole. When the controller 3determines that the detecting values of the sensor 29 match with thecorresponding predetermined values, the supporting force of thecorrection driving mechanism to the movable base body 23 is equal to theweight of the movable base body 23, thus ensuring that the height of themovable base body 23 does not change. When the movable base body 23tilts, the correction driving mechanism moves to the right side of thegravity center P, such that the movable base body 23 rotatescounterclockwise to reduce the tilting angle a of the movable base body23, until the detecting values of the sensor 29 match with thecorresponding predetermined values, such that the controller 3determines that the movable base body 23 is not tilting. In this case,the correction driving mechanism moves right below or right above thegravity center P, the direction of the supporting force of thecorrection driving mechanism to the movable base body 23 is opposite tothe gravity direction of the movable base body 23, and the supportingforce of the correction driving mechanism to the movable base body 23 isequal to the weight of the movable base body 23, thus ensuring that theheight of the movable base body 23 does not change. When the movablebase body 23 sinks and tilts simultaneously, the correction drivingmechanism moves to the right side of the gravity center P, such that themovable base body 23 rotates counterclockwise to reduce the tiltingangle a of the movable base body 23, until the detecting values of thesensor 29 match with the corresponding predetermined values, such thatthe controller 3 determines that the movable base body 23 is nottilting. In this case, the correction driving mechanism moves rightbelow or right above the gravity center P, the direction of thesupporting force of the correction driving mechanism to the movable basebody 23 is opposite to the gravity direction of the movable base body23, the supporting force of the correction driving mechanism to themovable base body 23 is greater than the weight of the movable base body23, such that the movable base body 23 moves upward as a whole until thedetecting values of the sensor 29 match with the correspondingpredetermined values. Thus, the controller determines that the movablebase body 23 is not sinking. In this case, the supporting force of thecorrection driving mechanism to the movable base body 23 is equal to theweight of the movable base body 23.

As shown in FIG. 25 and FIG. 26, an embodiment is provided showing thecorrection driving mechanism to be movable relative to the movable basebody 23 along the sliding direction of the movable base body 23. Thecorrection mechanism 28 includes an adjusting mechanism 286. Theadjusting mechanism 286 includes an adjusting motor 2861 and anadjusting screw bolt 2862 connected to the adjusting motor 2861. (Inother embodiments, the adjusting mechanism 286 may be an air cylinder oran oil cylinder, or other driving mechanisms.) The adjusting motor 2861and the upper supporting member 281 are both fixed to the movable moldbase 231. The adjusting screw bolt 2862 passes through the lowersupporting member 282 and adjusts the lower supporting member 282 tomove reciprocally along the sliding direction of the movable base body23. The lower supporting member 282 is provided with two accommodatingcavities 2831, and two pistons 2837 are provided corresponding to thetwo accommodating cavities 2831. The upper supporting member 281 is notprovided with the clamping portion 2811, such that the upper supportingmember 281 and the lower supporting member 282 do not match to form anassociation therewith. When the adjusting mechanism 286 adjusts thelower supporting member 282, the lower supporting member 282 moves alongthe sliding direction of the movable base body 23 relative to the uppersupporting member 281, and the two air cylinders 283 correspondinglymove to different supporting positions Q. In the cases where the movablebase body 23 sinks and/or tilts, the controller 3 controls the adjustingmotor 2861, and the adjusting screw bolt 2862 adjusts the lowersupporting member 282 to move along the sliding direction of the movablebase body 23, such that one of the air cylinders 283 moves to thecorresponding supporting position Q. The controller 3 correspondinglycontrols the air cylinder 283 to generate an upward supporting force tothe upper supporting member 281 to adjust the movable base body, suchthat the detecting values of the sensor 29 match with the correspondingpredetermined values. When the gravity center P of the movable base body23 is located at an outer side of the movable mold base 231 and close tothe fixed base body 22, the controller 3 controls the air cylinders 283to be correspondingly located below the extending portion 2814 and tocorrespondingly adjust the movable base body 23.

In other embodiments, the sensor 29 may determine whether the movablebase body 23 tilts by detecting the tilting angle a of the movable basebody 23. In this case, the movable base body 23 has a predeterminedtilting angle value. The predetermined tilting angle value is a basevalue configured in the controller 3 for the case when the movable basebody 23 does not generate an acting force to the guide rods 25. Thepredetermined tilting angle value can be a single value or a rangevalue, which is based on the movable base body 23 not generating anacting force to the guide rods 25. The controller 3 determines whetherthe corresponding detecting values of the sensor 29 match with thepredetermined tilting angle value to correspondingly control thecorrection mechanisms 28 to adjust the tilting angle a of the movablebase body 23. The tilting angle a of the movable base body 23 may bedetected by one sensor 29, or may be detected by multiple sensors 29altogether. The multiple sensors 29 can be the same, or may bedifferent, as long as the controller 3 may be determine the tiltingangle value of the movable base body 23 according to the sensors 29. Forexample, the sensors 29 can be all clearance sensors 291, or can be allforce sensors 292, or can be all height sensors. Alternatively, one ofthe sensors 29 can be the clearance sensor 291, and the other sensor 29is the force sensor 292, etc. Further examples are not hereinafterelaborated. With the sensors 29 being used to detect the tilting angle aof the movable base body 23 to determine whether the movable base body23 tilts, the controller 3 may directly control the driving mechanism toadjust the tilting angle a of the movable base body 23 by the tiltingangle a of the movable base body 23, such that the tilting angle valueof the movable base body 23 after the adjustment matches with thepredetermined tilting angle value as a whole, and the acting forces ofthe movable base body 23 to the guide rods 25 at multiple positions arecorrespondingly reduced as a whole. Thus, the adjustment of the drivingmechanism is more accurate, and the overall wear of the movable basebody 23 and the guide rods 25 are reduced.

When the tilting angle a of the movable base body 23 is detected by onesensor 29, the sensor 29 is a tilting angle sensor 29 or other sensors29 that may be used to detect the tilting angle a of the movable basebody 23. The tilting angle sensor 29 may be provided on the movable basebody 23, or may be provided at other positions capable of detecting thetilting angle a of the movable base body 23. When the tilting angle a ofthe movable base body 23 is detected by multiple sensors 29, thecontroller 3 performs corresponding calculations according to thedetecting values of the sensors 29 to obtain the tilting angle a of themovable base body 23.

As shown in FIG. 21 to FIG. 23, four clearance sensors 29 may be used todetect the tilting angle a of the movable base body 23. The controller 3may obtain the tilting angle value of the movable base body 23 accordingto the clearance variations detected by any two of the clearance sensors29, and determine whether the tilting angle value matches with thepredetermined tilting angle value, thereby correspondingly controllingthe correction mechanisms to adjust the tilting angle a of the movablebase body 23. When the controller 3 obtains the tilting angle a of themovable base body 23 according to the clearance variations detected bythe first clearance sensor 2911 and the fourth clearance sensor 2914,the first clearance sensor 2911 is located close to the fixed base body22 relative to the fourth clearance sensor 2914, and the two clearancesensors 291 are located on a same height level, such that the twoclearance sensors 291 are in parallel to a horizontal plane. When themovable base body 23 tilts, the two clearance sensors 291correspondingly tilt, such that the detecting values of the twoclearance sensors 291 related to the tilting angle a of the movable basebody 23 are more accurate and intuitive, without the need for thecontroller 3 to perform additional calculation for determining thetilting angle a of the movable base body 23, facilitating the controller3 to control the correction mechanisms 28 to adjust the movable basebody 23, and reducing the calculation of the controller 3. Using theexample that the controller 3 obtains the tilting angle a of the movablebase body 23 according to the detecting values of the first clearancesensor 2911 and the fourth clearance sensor 2914, the predeterminedtilting angle value is set to be zero. When the movable base body 23tilts downward, the detecting values of the first clearance sensor 2911and the fourth clearance sensor 2914 are changed to be greater thanzero, and the detecting value of the first clearance sensor 2911 is lessthan the detecting value of the fourth clearance sensor 2914.

To sum up, the injection molding machine device 100 according to certainembodiments of the present invention has the following beneficialeffects:

(1) By providing the sensor 29 to detect the clearances and contactforces between different components, and providing the predeterminedclearance values and the predetermined contact force valuescorresponding to the sensor 29, the controller 3 may correspondinglycontrol the correction mechanism 28 to adjust the movable base body 23by determining whether corresponding detecting values of the sensor 29match with the predetermined values, thereby knowing whether the movablebase body 23 generates an acting force to the guide rods 25 real-timeand accurately, and correspondingly adjust the movable base body 23 toreduce the acting force applied to the guide rods 25, thus facilitatingautomation control without manual adjustments, reducing the adjustingerror of the correction mechanism 28 such that the correction mechanism28 adjusts the height of the movable base body 23 more accurately,knowing the sinking height or tilting degree of the movable base body 23real-time and accurately without obtaining the adjustment height of themovable base body 23 by manual estimation or repeated testing, reducinghuman cost and increasing production efficiency, such that theadjustment height of the movable base body 23 matches with the actualsinking height and tilting height, significantly reducing the actingforce by the movable base body 23 to the guide rods 25 such that thewear of the movable base body 23 and the guide rods 25 is reduced,enhancing the usage life of the guide rods 25 and the movable base body23, and correspondingly enhancing the life of the injection moldingmachine device 100. Further, when multiple sensors 29 are provided, thecontroller 3 may perform determination according to the detecting valuesof the sensors 29 and correspondingly control the correction mechanism28, such that the moving position of the movable base body 23 is moreaccurate by multiple determinations.

(2) The one side of the movable base body 23 having the first mold 232has a greater weight. Thus, each of the guide rods 25 receives a greaterdownward acting force at the end adjacent to the first mold 232, suchthat the deformation amounts of the guide rods 25 are relatively larger,the clearance variation detected by the clearance sensor 291 becomesmore significant, and the detecting result becomes more intuitive andaccurate. Correspondingly, the adjustment of the correction mechanism 28to the movable base body 23 is more accurate.

(3) The lower supporting member 282 slides along the guide rails 24 inassociation with the movable base body 23. The contact-type clearancesensor 291 is provided on the lower supporting member 282 and in contactwith the lower end of the guide rods 25. Using the contact-typeclearance sensor 291 may save the mounting space of the contact-typeclearance sensor 291. Further, the contact-type clearance sensor 291 ismounted on the correction mechanism 28, facilitating the mounting of thecontact-type clearance sensor 291 and the electronic line arrangementswith the correction mechanisms 28. The contact-type clearance sensor 291slides on the guide rails 24 correspondingly with the correctionmechanisms 28. In the process, the contact-type clearance sensor 291detects the deformation amounts of the guide rods 25 at differentpositions of the guide rods 25, such that the controller 3correspondingly controls the correction mechanisms 28 to adjust themovement of the movable base body 23 in the vertical direction in thesliding process, thus reducing the acting force applied to the guiderods 25 in the sliding process of the movable base body 23, such thatthe guide rods 25 are protected in the longer stroke, further enhancingthe usage life of the guide rods 25 and the movable base body 23, andallowing the movable base body 23 and the fixed base body 22 to directact in closing the mold without waiting for the adjustment of themovable base body 23, and enhancing the production efficiency.

(4) The guide sleeves 233 are located in the receiving holes 234, andthe force sensor 292 is provided on the guide sleeves 233. Each guidesleeve 233 has a smaller size relative to the movable mold base 231.Correspondingly, it is easier and more convenient to machine the guidesleeves 233 and to mount the force sensor 292, which facilitates themounting of the force sensor 292 and the convenience for the detachmentand replacement of the force sensor 292. Further, the force sensor 292moves together with the sliding of the movable base body 23, such thatthe guide rods 25 are more protected in the sliding stroke, furtherenhancing the usage life of the guide rods 25 and the movable base body23.

(5) Two sensors 29 are provided, in which one of the sensors 29 is closeto the fixed base body 22 relative to the other sensor 29, such that thetwo sensors 29 form a connecting line, and the controller 3 maydetermine whether the movable base body 23 tilts by the detecting valuesof the two sensors 29, and correspondingly control the correctionmechanisms 28 to drive the movement of the movable base body 23 in thevertical direction and to adjust the tilting angle a of the movable basebody 23, such that the tilting angle a of the movable base body 23 isreduced, thus reducing the acting force to the guide rods 25 due to thetilting of the movable base body 23, preventing the movable base body 23and the guide rods 25 from wear, and enhancing the usage life of theguide rods 25 and the movable base body 23. The correction drivingmechanism is located at the right side of the gravity center P to drivethe movement of the movable base body 23 in the vertical direction, suchthat the movable base body 23 tilting toward the lower right directionrotates counterclockwise to reduce the tilting angle a of the movablebase body 23, allowing the detecting values of the sensor 29 to reachthe corresponding predetermined values, such that the acting force ofthe movable base body 23 to the guide rods 25 is reduced.

(6) With the sensors 29 being used to detect the tilting angle a of themovable base body 23 to determine whether the movable base body 23tilts, the controller 3 may directly control the driving mechanism toadjust the tilting angle a of the movable base body 23 by the tiltingangle a of the movable base body 23, such that the tilting angle valueof the movable base body 23 after the adjustment matches with thepredetermined tilting angle value as a whole, and the acting forces ofthe movable base body 23 to the guide rods 25 at multiple positions arecorrespondingly reduced as a whole. Thus, the adjustment of the drivingmechanism is more accurate, and the overall wear of the movable basebody 23 and the guide rods 25 are reduced.

(7) One of the sensors 29 is close to the fixed base body 22 relative tothe other sensor 29, such that the positions of the two sensors 29change significantly, facilitating the detecting values of the sensors29 to be more accurate and changing more significantly. The two sensors29 are located on a same height level, such that the two sensors 29 arein parallel to a horizontal plane. When the movable base body 23 tilts,the two sensors 29 correspondingly tilt, such that the detecting valuesof the two sensors 29 related to the tilting angle a of the movable basebody 23 are more accurate and intuitive, without the need for thecontroller 3 to perform additional calculation for determining thetilting angle a of the movable base body 23, facilitating the controller3 to control the correction mechanisms 28 to adjust the movable basebody 23, and reducing the calculation of the controller 3.

(8) The adjusting mechanism 286 is connected with the correction drivingmechanism, and adjusts the correction driving mechanism to movereciprocally along the sliding direction of the movable base body 23,without providing multiple correction driving mechanisms, thus ensuringthe correction driving mechanism adapts to the position change of thegravity center P of the movable base body 23, reducing the quantity ofthe correction driving mechanism, and saving the cost of the correctiondriving mechanism.

The foregoing description of the exemplary embodiments of the inventionhas been presented only for the purposes of illustration and descriptionand is not intended to be exhaustive or to limit the invention to theprecise forms disclosed. Many modifications and variations are possiblein light of the above teaching.

The embodiments were chosen and described in order to explain theprinciples of the invention and their practical application so as toactivate others skilled in the art to utilize the invention and variousembodiments and with various modifications as are suited to theparticular use contemplated. Alternative embodiments will becomeapparent to those skilled in the art to which the present inventionpertains without departing from its spirit and scope. Accordingly, thescope of the present invention is defined by the appended claims ratherthan the foregoing description and the exemplary embodiments describedtherein.

What is claimed is:
 1. An injection molding machine device, comprising:a rack; at least one guide rail fixed to the rack; at least two guiderods, wherein one of two ends of each of the at least two guide rods isfixed to the rack; a fixed base body fixed to one end of the rack,wherein the other of the two ends of each of the at least two guide rodsis fixed to the fixed base body; a movable base body provided directlyopposite to the fixed base body, wherein the movable base body isprovided with at least two receiving holes to correspondingly receivethe at least two guide rods, the movable base body slides along the atleast two guide rods relative to the fixed base body, and the movablebase body has a predetermined tilting angle value; at least onecorrection mechanism located between the movable base body and the guiderail to adjust a movement of the movable base body in a verticaldirection and to adjust a tilting angle of the movable base body; and atleast one sensor electrically connected to a controller, wherein thecontroller correspondingly controls the correction mechanism bydetermining whether a corresponding detecting value of the sensormatches with the predetermined tilting angle value.
 2. The injectionmolding machine device according to claim 1, wherein: the sensor is atilting angle sensor; or the injection molding machine device comprisesat least two sensors provided at intervals along a sliding direction ofthe movable base body or the vertical direction, the controllercorrespondingly controls the correction mechanism by determining whethercorresponding detecting values of the two sensors match with thepredetermined tilting angle value.
 3. The injection molding machinedevice according to claim 2, wherein the predetermined tilting anglevalue is zero, one of the two sensors is located closer to the fixedbase body than the other of the two sensors, and the two sensors arelocated at a same horizontal level.
 4. The injection molding machinedevice according to claim 2, wherein: the sensors are clearance sensors,the two clearance sensors detect a first clearance value between one ofthe at least two guide rods and an inner wall of a corresponding one ofthe at least two receiving holes, or a second clearance value betweenthe movable base body and the correction mechanism, or a third clearancevalue between the correction mechanism and the guide rail, and thecontroller obtains a tilting angle value of the movable base bodyaccording to at least one of a clearance variation amount of the firstclearance value, a clearance variation amount of the second clearancevalue and a clearance variation amount of the third clearance valuedetected by the two clearance sensors; or the sensors are heightsensors, and the controller obtains the tilting angle value of themovable base body according to height variation amounts of the twoclearance sensors at different heights.
 5. The injection molding machinedevice according to claim 1, wherein the movable base body has a gravitycenter, the correction mechanism has a correction driving mechanismlocated at one side of the gravity center close to the fixed base bodyto adjust the tilting angle of the movable base body.
 6. The injectionmolding machine device according to claim 5, wherein the correctionmechanism is fixed below the movable base body and slides along theguide rail in association with the movable base body, the correctionmechanism has two correction driving mechanisms respectively located attwo sides of the gravity center along a sliding direction of the movablebase body, the two correction driving mechanisms respectively adjust thetilting angle of the movable base body, the correction mechanism has anupper supporting member, and the two correction driving mechanisms drivethe upper supporting member to adjust the tilting angle of the movablebase body.
 7. The injection molding machine device according to claim 6,wherein: the correction mechanism has a lower supporting member slidingalong the guide rail in association with the movable base body; when atleast one of the correction driving mechanisms is a correction motor,the upper supporting member is located between the lower supportingmember and the movable base body, and the correction motor is fixed tothe lower supporting member and drives the upper supporting member toadjust the movement of the movable base body in the vertical direction;and when at least one of the correction driving mechanisms is an aircylinder or an oil cylinder, the air cylinder or the oil cylinder has atleast one accommodating cavity and a piston provided between the uppersupporting member and the lower supporting member, the piston isreceived correspondingly in the accommodating cavity, and the piston isconnected to the upper supporting member and drives the upper supportingmember to adjust the movement of the movable base body in the verticaldirection.
 8. The injection molding machine device according to claim 5,wherein the movable base body has two supporting positions respectivelylocated at two sides of the gravity center along a sliding direction ofthe movable base body, the correction mechanism has two correctiondriving mechanisms respectively provided corresponding to the twosupporting positions, and the two correction driving mechanismsindividually apply supporting forces upward to the two supportingpositions to correspondingly adjust the tilting angle of the movablebase body.
 9. The injection molding machine device according to claim 8,wherein the movable base body has a movable mold base and a first moldfixed and connected to one end of the movable mold base close to thefixed base body, one side of the movable mold base close to the fixedbase body has an end surface, an extending portion is fixed to themovable mold base or is integrally formed with the movable mold base,the extending portion passes beyond the end surface and extends to belocated between the gravity center and the fixed base body, one of thetwo supporting positions is located on the extending portion and locatedat one side of the gravity center close to the fixed base body, and thecorrection driving mechanism is located below the extending portioncorresponding to the supporting positions.
 10. The injection moldingmachine device according to claim 1, wherein the correction mechanismhas an adjusting mechanism and at least one correction drivingmechanism, the adjusting mechanism is connected to the correctiondriving mechanism to adjust the correction driving mechanism to movereciprocally along a sliding direction of the movable base body, and thecorrection driving mechanism correspondingly adjust the tilting angle ofthe movable base body.
 11. The injection molding machine deviceaccording to claim 10, wherein the correction mechanism has an uppersupporting member, the adjusting mechanism comprises an adjusting motorand an adjusting screw bolt connected to the adjusting motor, theadjusting motor and the upper supporting member are both fixed to themovable base body, the adjusting screw bolt is connected to thecorrection driving mechanism to adjust the correction driving mechanismto move reciprocally along the sliding direction of the movable basebody.